The auction was held. In my opinion a bad thing. Many unsold.
Shishkin's work has sold far below estimate for $ 1.5 mln. One of the two papers Karazin went for 535,000 rubles.
Roerich, three of SV Gerasimov, Konchalovsky, Stozharau, Pozhedaev, Samokhvalov, Nesterova not for sale.
But sales have been. Surprised by a sevenfold excess of the estimate on the work of G. Kalinowski:
http://www.kabinet-auktion.com/auction/rusjivopis/112/
And the first hand experience with the auction house was a success, to my surprise. So I can only recommend.